<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
        <title>原生 HTML 弹窗</title>
    </head>
    <body>
        <h1>Hello World</h1>
        <script src="main.js"></script>
    </body>
</html>
